IGCSE Computer Science Paper 1 Crossword: 3.2 Input and Output Devices (Modules 273–282)
Name:
Date:
Class:
✎
Crossword
Read each clue and write the matching term in the grid. Numbers in brackets show the letters in each word.
1
2
3
4
5
6
7
8
9
10
Across
- 3. Word 1 of the term in 1 Down: ___ (________-to-digital _________) (3)
- 4. Match the result needed (image, print, sound, 3D, movement) and the situation to the ______ that suits it best, then justify with 'because'. Word 2 of: suitable ______ ______ (6)
- 5. An input device that detects the presence or concentration of a particular ______ in the air, e.g. in carbon monoxide alarms, ______ leak detection, air quality checks and breathalysers. Word 1 of: ___ ______ (3)
- 8. Word 3 of the term in 4 Across: suitable ______ ______ (6)
- 10. Word 5 of the term in 1 Down: ___ (________-to-digital _________) (9)
Down
- 1. Turns the continuously varying ______ readings from a sensor into digital values (binary numbers) so a computer can process them. Word 2 of: ___ (________-to-digital _________) (8)
- 2. A sensor that detects sound and measures its level. Used in noise monitoring, burglar alarms and glass-break detection to show how loud a sound is or whether a sound is present. Word 1 of: ________ ______ (8)
- 6. An output device that turns an electrical signal into sound. An electromagnet makes a cone vibrate, and the vibrations make sound waves. A DAC first converts digital sound to analogue. (7)
- 7. An input device that measures a physical quantity, such as heat or light, from the environment and sends the readings to a computer or microprocessor. (6)
- 9. An input device that measures how much liquid or gas moves past a point in a set time (the ______ rate). Used in water meters, fuel systems, pipelines and irrigation. Word 1 of: ____ ______ (4)
Answer Key
IGCSE Computer Science Paper 1 · Modules 273–282
1A
N
2A
3A
D
C
L
4O
U
T
P
U
T
O
U
5G
A
S
6S
U
T
P
7S
8D
E
V
I
C
E
E
C
A
N
9F
K
S
L
E
O
10C
O
N
V
E
R
T
E
R
W
Across
3ADC — Word 1 of the term in 1 Down: ___ (________-to-digital _________)
4OUTPUT — Match the result needed (image, print, sound, 3D, movement) and the situation to the ______ that suits it best, then justify with 'because'. Word 2 of: suitable ______ ______
5GAS — An input device that detects the presence or concentration of a particular ______ in the air, e.g. in carbon monoxide alarms, ______ leak detection, air quality checks and breathalysers. Word 1 of: ___ ______
8DEVICE — Word 3 of the term in 4 Across: suitable ______ ______
10CONVERTER — Word 5 of the term in 1 Down: ___ (________-to-digital _________)
Down
1ANALOGUE — Turns the continuously varying ______ readings from a sensor into digital values (binary numbers) so a computer can process them. Word 2 of: ___ (________-to-digital _________)
2ACOUSTIC — A sensor that detects sound and measures its level. Used in noise monitoring, burglar alarms and glass-break detection to show how loud a sound is or whether a sound is present. Word 1 of: ________ ______
6SPEAKER — An output device that turns an electrical signal into sound. An electromagnet makes a cone vibrate, and the vibrations make sound waves. A DAC first converts digital sound to analogue.
7SENSOR — An input device that measures a physical quantity, such as heat or light, from the environment and sends the readings to a computer or microprocessor.
9FLOW — An input device that measures how much liquid or gas moves past a point in a set time (the ______ rate). Used in water meters, fuel systems, pipelines and irrigation. Word 1 of: ____ ______